Sandknox serves as a reliable provider of china clay, delivering premium-grade material sourced and refined from premium natural sources. Renowned for its exceptional whiteness, small particle dimensions, and robust chemical resilience, our china clay finds extensive use in various industrial sectors.
Boasting substantial stockpiles and cutting-edge refinement methods, we guarantee uniform excellence and steady availability for clients seeking to purchase china clay in local as well as global markets.
What is china clay?
China clay, is a naturally occurring fine white mineral formed from the weathering of aluminum silicates such as feldspar. Its primary mineral component, kaolinite, is a soft, layered silicate valued for its whiteness, smooth texture, and chemical inertness.
Due to these properties, china clay plays an important role in industrial manufacturing where purity, consistency, and performance are essential.
Why Choose SandKnox for China clay?
Sandknox excels as a dependable exporter and provider of china clay, thanks to our solid resource foundation, emphasis on high-quality refinement, and efficient transportation networks.
Vast Stockpiles
Millions of tons of top-tier china clay guarantee sustained availability over the long haul
Superior Luminosity
About 80% ISO brightness delivering exceptional whiteness
Outstanding Cleanliness
Extremely low concentrations of Fe₂O₃ and TiO₂, coupled with negligible impurities
Variety of Options
Customized variants adapted according to brightness, granule size, and firing shade
Steady Quality Assurance
Dedicated internal evaluations maintain even standards
Logistics Edge
Convenient access to Kandla and Mundra ports supports seamless worldwide distribution
Trustworthy Delivery & Assistance
Regular shipments paired with excellent client fulfillment
Technical Advantages
| Parameter | Value |
|---|---|
| SiO₂ | 46 – 48% |
| Al₂O₃ | 36 – 38% |
| Fe₂O₃ | ≤ 0.8% |
| Moisture | ≤ 2% |
| Brightness | ≥ 85% |
| Mesh Size | 325 mesh |
Type of China Clay
China clay noodle
China clay lump
China clay powder
Packaging Options
Applications and Uses of China Clay
Ceramics & Sanitaryware
Improves whiteness, plasticity, and strength.
Paper Industry
Coating and filler for brightness and printability.
Rubber & Plastics
Functional filler improving mechanical properties.
Pharmaceuticals & Cosmetics
Used for purity, smooth texture, and inertness.
Agriculture
Soil conditioning and carrier for fertilizers/pesticides.
Adhesives & Sealants
Improves viscosity and stability.
Global Reach & Supply Capability
As an experienced China Clay exporter, Sandknox supplies high-quality China clay to domestic and international markets. Our strong logistics network and large reserves ensure consistent availability and timely delivery for customers searching for kaolin clay for sale in bulk quantities.
Ready to order high-purity china clay ?
Have any questions? we’ve got answers
China Clay, also known as Kaolin, is a soft, white, fine-grained clay primarily composed of the mineral kaolinite. It is naturally occurring, carefully mined, washed, and processed to achieve high purity and brightness. It is one of the most versatile industrial minerals used worldwide.
High brightness (up to 80–85% ISO)
Fine particle size (typically 1–10 microns)
Low iron and titanium content
Excellent chemical stability and low shrinkage
High plasticity and whiteness
These properties make it ideal for premium industrial applications.
China Clay is widely used in:
Paper & board coating
Ceramics & porcelain
Paints & coatings
Rubber & plastics
Pharmaceuticals & cosmetics
Fiberglass & refractories
Agriculture (as a carrier)
Higher brightness delivers superior whiteness and opacity in the final product. It is critical for high-quality paper, paints, and ceramics where a clean, bright appearance is required. Sandknox China Clay consistently achieves ~80% ISO brightness.
Premium-grade China Clay usually contains >95% kaolinite with very low impurities (Fe₂O₃ < 0.5% and TiO₂ < 0.5%). This ensures excellent colour, firing behaviour, and performance in end products.
Yes. We offer multiple tailored grades based on:
Brightness level
Particle size distribution
Moisture content
Firing colour
Viscosity
Custom specifications are available for specific customer requirements.
China Clay is non-toxic and chemically inert. It is widely used in cosmetics, pharmaceuticals, and food-contact applications. However, like any fine powder, inhalation of dust should be avoided. Proper dust control and PPE are recommended during handling.